I recently dl'd a trial copy of System Mechanic Pro 7. Now it is very good but I don't have a credit card to be able to pay for it to become the full version (extend the evaluation period past 30 days).

Are there any alternatives out there that do the same things just as well/better and are an all in one package that don't require me to have a credit card and shell out some cash - i.e. are totally freeware.